Intel RS3UC080 User Guide - Page 16

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Intel®

Integrated RAID Solution User Guide

Integrated Mirroring and Integrated Mirroring

Enhanced Features

Integrated Mirroring, Integrated Mirroring + Striping, and Integrated Mirroring Enhanced

volumes support the following features:

•

Configurations of one or two mirrored volumes on each Intel SAS-3 controller. Each

volume can consist of two mirrored disks for an Integrated Mirroring volume; three

to ten mirrored disks for an Integrated Mirroring Enhanced volume; or four, six,

eight, or ten mirrored disks for an Integrated Mirroring + Striping volume.

•

(Optional) Two global hot spare disks per Intel SAS-3 controller to automatically

replace failed disks in mirrored volumes.

•

Ability of mirrored volumes to run in optimal mode or in degraded mode if one

mirrored disk in an Integrated Mirroring volume fails or if one or more mirrored

disks fail in an Integrated Mirroring + Striping volume or Integrated Mirroring

Enhanced volume.

•

Support for hot swapping.

•

Support for OCE for RAID 1 volumes. OCE permits you to increase the size of a

RAID 1 volume by replacing the existing disk drives with higher-capacity disk

drives. Data is protected during the expansion process, and the RAID 1 volume

remains online.

•

Presentation of a single virtual drive to the operating system for each mirrored

volume.

•

Support for both SAS disks and SATA disks, although you cannot combine the two

types of disks in the same volume. However, an Intel SAS-3 controller can support

one volume with SATA disks and a second volume with SAS disks.

•

Automatic background initialization after a volume is created.

•

Consistency checking.

•

Fusion-MPT architecture.

•

Menu-driven, BIOS-based configuration utility.

•

Error notification, in which the drivers update an OS-specific event log.

•

Support for SCSI Enclosure Services (SES) status LED.

•

Write journaling, which permits automatic synchronization of potentially

inconsistent data after unexpected powerdown situations.

•

Use of metadata to store volume configuration on disks in a mirrored volume.

•

Automatic background resynchronization while host I/O transactions continue.

•

Background media verification, which makes sure that data on mirrored volumes is

always accessible.

Section	Page
Preface	3
Audience	3
Organization	3
Related Publication	3
Table of Contents	5
List of Figures	7
List of Tables	9
1 Introduction to the Integrated RAID Solution	11
Overview	11
Benefits and Features	12
Host Interface	12
Metadata Support	13
SMART Support	13
Fusion-MPT Support	13
CacheCade on Host	13
2 Overview of Integrated RAID Mirrored Volumes	15
Overview	15
Integrated Mirroring and Integrated Mirroring Enhanced Features	16
Operation of Mirrored Volumes	17
Mirrored Volume Features	19
Resynchronization with Concurrent Host I/O Operation	19
Hot Swapping	19
Hot Spare Disk	19
Online Capacity Expansion	19
Media Verification	20
Disk Write Caching	20
NVSRAM Usage	20
Background Initialization	20
Consistency Check	20
Make Data Consistent	21
3 Creating Mirrored Volumes	23
Mirrored Volume Configuration Overview	23
Creating Mirrored Volumes	23
Creating an Integrated Mirroring Volume	24
Creating an Integrated Mirroring Enhanced or Integrated Mirroring + Striping Volume	26
Expanding an Integrated Mirroring Volume with OCE	27
Managing Hot Spare Disks	28
Creating Hot Spare Disks	28
Deleting a Hot Spare Disk	30
Other Configuration Tasks	30
Viewing Array Properties	30
Running a Consistency Check	30
Activating an Array	31
Deleting an Array	31
Locating Disk Drives in a Volume	32
Selecting a Boot Disk	33
4 Overview of Integrated Striping	35
Overview	35
Integrated Striping Features	35
Integrated Striping Description	36
5 Creating Integrated Striping Volumes	39
Integrated Striping Configuration Overview	39
Creating Integrated Striping Volumes	39
Other Configuration Tasks	41
Viewing Array Properties	41
Activating an Array	41
Deleting an Array	42
Locating Disk Drives in a Volume	43
Selecting a Boot Disk	43
Appendix A: Using the SAS-3 Integrated RAID Configuration Utility	45
Hardware and Software Requirements	45
Controller Support	45
Operating System and Software Support	46
Interface Description	46
Commands	46
Common Command-Line Parameters	47
CREATE	48
Command Line	49
Parameters	49
Program Return Value	49
DELETE	49
Command Line	49
Parameters	49
Program Return Value	50
DELETEVOLUME	50
Command Line	50
Parameters	50
Program Return Value	50
DISPLAY	50
Command Line	51
Parameters	51
Program Return Value	51
Sample Output	51
HOTSPARE	54
Command Line	54
Parameters	54
Program Return Value	54
STATUS	55
Command Line	55
Parameters	55
Program Return Value	55
Sample Output	55
LIST	56
Command Line	56
Parameters	56
Program Return Value	56
Sample Output	56
CONSTCHK	57
Command Line	57
Parameters	57
Program Return Value	57
ACTIVATE	57
Command Line	57
Parameters	57
Program Return Value	57
LOCATE	58
Command Line	58
Parameters	58
Program Return Value	58
LOGIR	58
Command Line	58
Parameters	58
Program Return Value	59
BOOTIR	59
Command Line	59
Parameters	59
Program Return Value	59
Sample Output	60
BOOTENCL	60
Command Line	60
Parameters	60
Program Return Value	60
Sample Output	61
HELP	61
Command Line	61
Parameters	61

Intel RS3UC080 User Guide - Page 16

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